Company lists · Data refreshed September 2026
Top 25 Intelligence and security services based in Chicago, United States
RevenueBase identified 64 intelligence and security services headquartered in Chicago, United States as of September 2026 and tracks 1,666 professional contacts across them, including 574 with verified work emails. Across the United States, Washington is the largest hub for this category (200 companies); Chicago has 64.
This list covers intelligence and security services headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest intelligence and security services based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 874 contacts → | ||||
Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 52 contacts → | ||||
Partial evidence “Prescient helps multinational corporations, law firms, investors, and private clients mitigate risk and discover actionable intelligence using next generation technology and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 31 contacts → | ||||
Indirect evidence “In April, 2019 Hillard Heintze joined Jensen Hughes.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27 contacts → | ||||
Partial evidence “In today’s digitally connected world, cyber security plays a crucial role.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 27 contacts → | ||||
Indirect evidence “Trusted protection and investigative services with a commitment to excellence.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Partial evidence “Kinetic Global is a global duty of care and security company operating in more than 175 countries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Partial evidence “Halo Security Group is a Chicago-based professional security services company providing comprehensive and reliable protection for businesses, residential communities, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 contacts → | ||||
Partial evidence “Inner Valor is a premier provider of White Glove Security℠ and corporate investigation services, offering elite and personalized solutions to protect your assets, people, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 contacts → | ||||
Indirect evidence “JAS Global Advisors is a unique professional services firm delivering risk management, technology, and governance solutions to a wide range of commercial and government clients.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Partial evidence “Security Consulting | Private Investigations | Law Enforcement Consulting | McCarthy Byrnes is a trusted security, investigations, and public safety advisory firm providing…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Strong evidence “Head of Security is a Chicago-based security risk management consulting firm that utilizes behavioral-science and protective-intelligence to help people, organizations, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Partial evidence “HTA Technology Security Consulting (HTA) is a certified Woman-Owned, Small, Disadvantaged, Minority business with offices in Chicago, IL, and the Washington DC corridor.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Indirect evidence “PAX Group, LLC is a global crisis and conflict management consultancy dedicated to helping leaders and organizations engage in challenging circumstances, communication, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Founded by professionals with decades of diverse experience conducting complex multi-jurisdictional investigations, 221B Partners finds the dots and connects them.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “Axium assists clients worldwide in understanding risks and making informed decisions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “RedHawk is a Investigations and Security Risk Management firm specializing in comprehensive, professional and discreet services to a wide variety of US based and international…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Partial evidence “Clairos is a cybersecurity company that helps organizations build stronger, more manageable security programs through a practical, tailored approach.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Indirect evidence “Not auditors but real hackers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence “TeamWerks is an IT company based in the United States.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Indirect evidence “Apex IT and Cybersecurity Solutions Inc is a leading Technology and Cybersecurity services firm based in Chicago, IL.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Indirect evidence “Next Era Transformation Group is a thought leadership and advisory group wholly focused on today’s critical risks in Digital, Privacy and Cyber.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Wolf Point Security is a cyber security consulting firm, plain and simple.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “Goldmill Group, headquartered in Northern Michigan and connected through global strategic partnerships, is led by Christian Picciolini.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: intelligence and security services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names intelligence and security services.
- Partial evidence
- Its own public description names part of intelligence and security services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name intelligence and security services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 64 intelligence and security services based in Chicago, United States
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Intelligence and security services based in Chicago, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 64 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among intelligence and security services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Chicago, United States whose own description of what they do matches “intelligence and security services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names intelligence and security services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among intelligence and security services, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 574 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Intelligence and security services by metro in the United States
- Intelligence and security services in Washington200
- Intelligence and security services in New York166
- Intelligence and security services in Houston94
- Intelligence and security services in Arlington85
- Intelligence and security services in Atlanta79
- Intelligence and security services in Miami75
- Intelligence and security services in Austin71
- Intelligence and security services in Los Angeles71
- Intelligence and security services in Dallas67
- Intelligence and security services in Mclean62
- Intelligence and security services in Reston58
- Intelligence and security services in Alexandria56
- Intelligence and security services in Tampa56
- Intelligence and security services in Columbia55
- Intelligence and security services in Denver49
- Intelligence and security services in Herndon45
- Intelligence and security services in Las Vegas42
- Intelligence and security services in Boston40
- Intelligence and security services in Charlotte40
- Intelligence and security services in San Diego40
- Intelligence and security services in San Francisco40
- Intelligence and security services in Orlando39
- Intelligence and security services in San Antonio39
- Intelligence and security services in Ashburn38
- Intelligence and security services in Baltimore34
- Intelligence and security services in Colorado Springs33
- Intelligence and security services in Phoenix33
- Intelligence and security services in Seattle33
- Intelligence and security services in Huntsville30
- Intelligence and security services in Pittsburgh28
- Intelligence and security services in Fairfax27
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names intelligence and security services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many intelligence and security services are there based in Chicago, United States?
RevenueBase identified 64 intelligence and security services headquartered in Chicago, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Trustwave, A Levelblue Company, headquartered in Chicago, tops this list with the largest team on record.
Which city in the United States has the most intelligence and security services?
Washington leads the United States with 200 headquartered companies, followed by New York (166) and Houston (94). Chicago has 64.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 574 verified decision-maker contacts tracked across these 64 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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